An Optimum Population for North and Latin America

The population of North America, which now stands at nearly 300 million people, is projected to double in about 60 years, while the population of nearly 500 million people in South America is projected to double in less than 40 years. Both of these populations obtain more than 99% of their food from the land, and this percentage will increase as these populations grow. Maintaining fertile and ample land is critical if these large populations are to be fed. Soil degradation by soil erosion is a serious problem on both continents. In addition, agricultural land is being lost to urbanization and highways because of rapid population growth. Nearly a half hectare of land is needed for urbanization for each person added to the North American population; this is already causing serious problems with agriculture in some states in the United States. The land resources that are critical for food production will be especially so if the populations of both continents double to nearly 2 billion. Land resources will also be critical when both continents deplete their fossil fuels in less than 100 years and have to turn to renewable energy sources. With about 2 billion people, there will be serious shortages of food, water, and energy resources and the standard of living will significantly decline. Our assessment suggests that for a relatively high standard of living in North and South America each continent should have no more than about 200 million people, or a total of 400 million.     

我国贫困人口标准再探讨

近几年,通过对我国10余个贫困县的考察,笔者认为:农村贫困人口标准过低,仅相当于国际贫困线确定的最低贫困人口标准的1/5,相当其贫困标准的1/10;相当于我国监狱囚犯生活标准的1/4,相当于美国贫困人口标准的1/50。贫困人口难以完成在当时社会一般的、正常状况下劳动力的再生产。农村贫困人口从2亿多减少到2000多万,主要不是扶贫工作所致,而是到城镇打工。依据马克思劳动力价值学说的基本原理,抓紧调整提高农村贫困人口标准,改进扶贫工作机制,对我国的长治久安和建设和谐社会的大局有利。     

Deaths from violence in Britain: A tentative secular survey

Abstract In recent years about 7,500 persons have been killed annually in road accidents in Britain. This 'slaughter on the roads' represents a mortality rate of around 150 per million persons living per annum (henceforth, pMa). 1 The vast majority of deaths occurred in accidents involving motor vehicles, 2 of which there were approximately 14 million in Britain in 1968. 3 Four decades ago the number ofmotor vehicles was less than one-quarter ofthat to-day (in 1934, 2·4 million): nevertheless, in the 1930's the mortality rate from motor vehicle accidents was almost identical with that of to-day. Clearly, though road traffic has increased and more persons expose themselves to the risks, with much longer exposure for some, man's mastery over the motor vehicle, social as well as technical, has correspondingly increased in recent decades. Individual vehicles are much less likely to be involved in fatal accidents, and for those who travel in vehicles (though conceivably not for pedestrians) the roads are no more dangerous, despite the increased traffic.     

Chinese Poor Reduced to 26.1 Million

The year 2004 saw the greatest reduction in the number of the poor over the past five years and the number of the poor decreased to 26.1 million,according to the latest statistics released by the Office of Poverty Alleviation under the State Council. In 2004, the number of people living in rural areas with an average per capita income of less than RMB668(dire poverty) was reduced by 2.9 million,     

The United Nations on the Demographic Impact of the AIDS Epidemic

A report prepared by the Joint United Nations Programme on HIV/AIDS (UNAIDS) and released in Geneva on 27 June 2000 (just prior to the XIIIth International AIDS Conference held in Durban, South Africa) updates estimates of the demographic impact of the epidemic. It characterizes AIDS in the new millennium as presenting “a grim picture with glimmers of hope”—the latter based on the expectation that national responses aimed at preventing and fighting the disease are in some places becoming more effective. According to the report, which emphasizes the considerable statistical weaknesses of its global estimates, the number of people living with HIV/AIDS in 1999 was 34.3 million (of which 33.0 million were adults and 1.3 million were children under age 15; slightly less than half of the adults affected, 15.7 million, were women). Deaths attributed to AIDS in 1999 amounted to 2.8 million, bringing the total since the beginning of the epidemic to 18.8 million. These figures represent moderate upward revisions of earlier UN estimates shown in the Documents section of PDR 25, no. 4. The revised estimate of the number of persons newly infected with HIV in 1999 is, in contrast, slightly lower: 5.4 million, of which 4.7 million were adults and 2.3 million were women. An excerpt from the 135‐page Report on the Global HIV/AIDS Epidemic, focusing on countries in the worst‐affected area, sub‐Saharan Africa, is reproduced below. (Figures shown have been renumbered.)     

中国老年贫困人口规模研究

利用最低生活保障数据,采用不同贫困标准,对中国老年贫困人口规模进行测算。采用农村贫困线和"1天1美元"两个标准,测得农村老年贫困人口规模在1 400万人以上;采用城镇最低生活保障标准和"1天2美元"两个标准,测得城镇老年贫困人口规模在300万人左右。这样,中国老年贫困人口总规模近1 800万,老年贫困发生率超过10%。     

A preliminary inquiry into the interrelationship between population growth and economic development in Hong Kong]

Hong Kong includes Hong Kong Island, Kowloon, New Territory, and more than 230 islands. During World War ii, the population of Hong Kong decreased sharply, and the total number decreased to less than 600,000. Since the war ended in 1945, the population of Hong Kong has been increasing rapidly at an annual rate of 20%. By the end of 1981, its total population had increased to 5.2 million, including 1.25 million newly arrived immigrants. The average age is 24.8. People above the age 65 constitute only 6% of the total population. This shows that there is a sufficient supply of labor for local economic development. Because of continued economic growth, there has been a constant demand for more labor. Low wages provide an excellent condition for high-speed industrial development. An improved quality of professional workers and management personnel also contributes much to Hong Kong's industrial modernization. Because of high employment among the labor population, the general population earns income and spends a great deal, and this has created a rather active economy. General population growth trends include: 1) continued population growth will bring the total population to 6.3 million by the end of 1981, and the housing problem will become more serious; 2) a stable decline in the natural population growth rate will gradually change the population pattern to a low birth, low death, and low natural growth situation; and 3) improvements in science and technology, health care, and living conditions will reduce the death rate, and the average age will lengthen, and with the increase in old people, the demand for social welfare will also increase; and 4) there will be a shortage in experienced labor (professional technicians and high management personnel) in the 1980s. Facing the new situation, Hong Kong's economic structure needs reform, moving from a labor intensive enterprise to a capital-technological intensive enterprise. The market will be expanded and Hong Kong will earn more profit in China's mode rnization process.     

Emigration from the USA: Multiplicity survey evidence

Special national surveys in the 1980s give the only recent data about emigrants from the USA, based on asking residents about their parents, siblings, and children living outside the USA who ever lived here. Each of the three surveys yielded an initial or minimal estimate of at least one million surviving emigrants. Adjusting for probable omission of emigrants without a resident immediate relative, the number of emigrants surviving as of 1990 is likely to exceed two million and, with alternative assumptions, could exceed three million. Due to inherent uncertainties in differing methodologies for measuring emigration for the past three decades, the implied level of emigration of permanent residents for the 1980s may be similar to previous levels. This finding contradicts popular belief of a simple direct association, i.e., that increasing immigration levels would be associated with increasing emigration levels. Emigration levels result from population heterogeneity on such characteristics as origin country, location and strength of familial ties, and reasons for coming to the USA, and associated probabilities of emigration. For many of the post-1965 immigrant cohorts, there is one or more decades during which emigration may yet occur.Abbreviations ALAs Americans living abroad - INS US Immigration and Naturalization Service - IRCA Immigration Reform and Control Act of 1986 - CPS Current Population Survey This article is partially based on a paper presented at the 1990 annual meeting of the Population Association of America in Toronto, Canada, while the author was a member of the Population Analysis Staff of the US Bureau of the Census.     

Marine protected areas and children’s dietary diversity in the Philippines

Fish living around the coral reefs in the Philippines provide livelihoods for more than a million local fishers and are an important source of protein for coastal communities. However, this rich resource is at risk from myriad threats, which consequently threaten human livelihoods, nutrition, and health. In this paper, we examine the degree to which marine protected areas (MPAs), which aim to conserve marine biodiversity, are associated with improved nutritional outcomes in children under age 5. This analysis, which uses data from the 2008 Philippines Demographic and Health Survey and MPA data from the Coastal Conservation and Education Fund, found a positive association between MPAs and children’s dietary diversity when the MPAs were located closer than 2 km to a child’s community. MPA characteristics such as age or type of management were not consistently associated with dietary diversity. These results suggest a positive association of proximity to MPAs with certain aspects of children’s diet.     

A survey of population in the ESCAP region

In 1983, the ESCAP region added 44 million people, bringing its total population to 2600 million, which is 56% of the world population. The annual rate of population growth was 1.7% in 1983 compared to 2.4% in 1970-75. The urban population rose from 23.4% in 1970 to 26.4% in 1983, indicative of the drift from rural areas to large cities. In 1980, 12 of the world's 25 largest cities were in the ESCAP region, and there is concern about the deterioration of living conditions in these metropoles. In general, however, increasing urbanization in the developing countries of the ESCAP region has not been directly linked to increasing industrialization, possibly because of the success of rural development programs. With the exception of a few low fertility countries, a large proportion of the region's population is concentrated in the younger age groups; 50% of the population was under 22 years of age in 1983 and over 1/3 was under 15 years. In 1983, there were 69 dependents for every 100 persons of working age, although declines in the dependency ratio are projected. The region's labor force grew from 1100 million in 1970 to 1600 million in 1983; this growth has exceeded the capacity of country economies to generate adequate employment. The region is characterized by large variations in life expectancy at birth, largely reflecting differences in infant mortality rates. Whereas there are less than 10 infant deaths/1000 live births in Japan, the corresponding rates in Afghanistan and India are 203 and 121, respectively. Maternal-child health care programs are expected to reduce infant mortality in the years ahead. Finally, fertility declines have been noted in almost every country in the ESCAP region and have been most dramatic in East Asia, where 1983's total fertility rate was 40% lower than that in 1970-75. Key factors behind this decline include more aggressive government policies aimed at limiting population growth, developments in the fields of education and primary health care, and greater availability of contraception through family planning programs.     

U.S. population in the 21st century: Which scenario is reasonable?

A major Census Bureau study released in January 1989 has evoked renewed warnings in the media and among some population analysts that the U.S. faces population decline in the next century if it does not increase fertility and/or raise immigration. The report's middle scenario rests on an assumed future total fertility rate (TFR) of 1.8, life expectancy of 81.2 years, and net immigration of 500,000 annually. These mid-range assumptions would yield a United States population of 268 million by 2000, peaking at 302 million in 2040 and falling to 292 million by 2080. Questionable assumptions in the report's most likely scenario are discussed. These are:

1. that immigrants bear children at the same rate as their equivalent age and racial group in the United States population.
2. that the high TFR of Hispanics will not raise the overall 1.8 TFR foreseen for whites as the Hispanic proportion of the white population continues to grow.
3. that net yearly immigration will fall to 575,000 in 1990 and 500,000 by 2000. The Census Bureau's "high" assumption of 800,000 net yearly may be more realistic.

The report's low growth scenario projects future population size that is more reassuring than alarming: 264 million in 2000, rising to 288 million in 2030, and falling to 266 million in 2080. Thus, in ninety years the United States would still have 20 million more people than now. While some fear that such slow growth will lower United States influence and bring labor shortages and an aging population, the nation's quality of life would be less at risk with a population of 266 million than with one approaching the one-half billion projected by the Census report's high estimates.     

Demographic Changes in North Korea: 1993–2008

Given the scarcity of population data, few demographic analyses have been conducted on population trends in North Korea. Using the 1993 and 2008 population and housing census data, we prospectively reconstruct population change in the country during the 15 intercensal years. Reconstruction of the population trends of North Korea enables us to assess the consistency of the available demographic evidence and to assess the demographic impact of the famine in the 1990s. According to the results of the population reconstruction and our counterfactual population projections, the famine caused between 240,000 and 420,000 total excess deaths—lower than the previous estimate of 600,000–1 million; and the human costs of the deteriorating living conditions between 1993 and 2008 may be estimated as 600,000 to 850,000 total excess deaths attributable to economic decline in the post‐Cold war era. The reconstructed population trends mirror the continuing deterioration of the living conditions in North Korea since the early 1990s.     

An analysis of net immigration in census coverage evaluation

National surveys monitored growth in the foreign-born population for the 1980s, especially net undocumented migration's continuing role, but the 1990 census portrayed an even larger foreign-born population than these surveys. Undercoverage in 1990 could have been higher than initially presented because preliminary studies may have insufficiently accounted for decadal net immigration. Assumptions intended to maintain a high undocumented undercount performed poorly when census counts of foreign-born residents became known. Any point estimate for net undocumented migration, calculated as a residual, is likely to be biased by assumptions and data gaps for components of calculating net legal immigration, especially in the direction of underestimation. A reasonable statement is that at least 2.1–2.4 million undocumented residents were enumerated in the 1990 census. The number of unenumerated undocumented residents may easily have ranged between 0.5 million and 3.0 million, and a narrower range of 1 million to 2 million is plausible. Despite the importance of undocumented migration measurement for census evaluation and policy purposes, differences among various undocumented estimates are more likely to stem from discrepancies in universe, reference dates, or individual judgment, rather than analytic refinement. Better measurement of the foreignborn population or its census coverage would aid in setting upper limits on net undocumented migration.     

The boundaries of genocide: Quantifying the uncertainty of the death toll during the Pol Pot regime in Cambodia (1975–79)

The range of estimates of excess deaths under Pol Pot's rule of Cambodia (1975–79) is too wide to be useful: they range from under 1 to over 3 million, with the more plausible estimates still varying from 1 to 2 million. By stochastically reconstructing population dynamics in Cambodia from extant historical and demographic data, we produced interpretable distributions of the death toll and other demographic indicators. The resulting 95?per cent simulation interval (1.2–2.8 million excess deaths) demonstrates substantial uncertainty over the exact scale of mortality, yet it still excludes nearly half of the previous death-toll estimates. The 1.5–2.25 million interval contains 69 per cent of the simulations for the actual number of excess deaths, more than the wider (1–2 million) range of previous plausible estimates. The median value of 1.9 million excess deaths represents 21?per cent of the population at risk.

Supplementary material for this article is available at: http://dx.doi.org/10.1080/00324728.2015.1045546     

Those Who are Left Behind: An Estimate of the Number of Family Members of Suicide Victims in Japan

This paper contributes to the literature of suicide studies by presenting procedures and its estimates of the number of family members who lose their loved ones to suicide. Using Japanese aggregate level data, three main findings emerge: first, there are approximately five bereaved family members per suicide; second, in 2006, there were about 90,000 children who had lost a parent to suicide; and third, in 2006, there were about three million living family members who had lost a loved one to suicide. The direct production loss of bereaved family members in 2006 alone is estimated at approximately 197 million USD. These results are valuable in evaluating the cost-effectiveness of suicide prevention programs and in designing appropriate policy instruments.     

“单独”育龄妇女总量、结构及变动趋势研究

文章以"单独"育龄妇女为研究对象,通过建立随机微观人口仿真模型,研究"单独"育龄妇女总量、结构和变动趋势,结果表明,如果现行生育政策不变,"单独"育龄妇女总量在未来三四十年内持续增长的趋势不可逆转,且增长速度很快,年均增长速度在10‰以上,2050年"单独"育龄妇女占育龄妇女的比例将达到50%以上,总量超过1.2亿。如果放开"单独"二孩政策,2050年"单独"育龄妇女占育龄妇女的比例将在50%以下,总量仍超过1亿。如果全面放开二孩政策,2050年"单独"育龄妇女占育龄妇女的比例将在30%以上,总量在1亿以内。     

Materialism and Quality of Life

An attempt is made in this paper to establish a foundation for a theory of materialism and quality of life. The theory posits that overall life satisfaction (quality of life) is partly determined by satisfaction with standard of living. Satisfaction with standard of living, in turn, is determined by evaluations of one's actual standard of living compared to a set goal. Materialists experience greater dissatisfaction with their standard of living than nonmaterialists, which in turn spills over to overall life causing dissatisfaction with life in general. Materialists experience dissatisfaction with their standard of living because they set standard of living goals that are inflated and unrealistically high. These goals set by materialists are more influenced by affective-based expectations (such as ideal, deserved, and need-based expectations) than cognitive-based ones (such as predictive, past, and ability based expectations). Materialists' ideal standard-of-living expectations are influenced by social comparisons involving remote referents, more so than comparisons involving standards that are situationally imposed. Examples of situationally-imposed standards are perceptions of wealth, income, and material possessions of family, friends, neighbors, colleagues, and so on. In contrast, examples of standards based on remote sources are perceptions of standard of living of others in one's community, town, state, country, other countries; perceptions of standard of living of others based on gender, age, education, ethnicity, occupation, and social class. This tendency to use remote referents in social comparisons may account for materialists' inflated and value-laden expectations of their standard of living. Materialists' deserved standard-of-living expectations are influenced by the tendency to engage in equity comparisons involving income and work. Thus, materialists compare themselves with others that seem to have more income and worked no harder. These equity comparisons generate feelings of inequity, injustice, anger, or envy. These emotions may also account for materialists' inflated and value-laden expectations of their standard of living. Materialists' standard-of-living expectations based on minimum needs are influenced by the tendency to spend more than generate income. This proclivity to overconsume and underproduce may be partly responsible for materialists' inflated and value-laden expectations of their standard of living.     

Thailand population statistics

A few statistics on population for Thailand are reported for April 1, 1993. Total population is determined to be 58,113,000 of which 29,039,000 are males and 29,074,000 are females. The urban population was 17,852,000 and the rural population was 40,261,000. Regional distribution showed population in the north to be 9,443,000, in the northeast to be 19,590,000, in the south to be 7,107,000, and in the center excluding Bangkok to be 14,517,000. The population of Bangkok Metropolitan area was 7.5 million. Age distribution was 16.7 million under the age of 15 years, 19.4 million 6-21 years, 37.1 million 15-59 years, 4.2 million 60 years and older, and 35.3 million 20 years and older. There were 15,002,000 women in the reproductive ages of 15-44 years. The crude birth rate was 17.4/1000 population. The crude death rate was 5.9/1000 population. Infant mortality was 35.5/1000 live births. The natural growth rate was 1.15%. Life expectancy at birth was 66.4 years for males and 71.8 years for females. Life expectancy at 60 years was 17.9 years for males and 21.2 years for females. The total fertility rate was 2.2/woman. Contraceptive prevalence was 75.0%. Estimated population in the year 2012 is expected to be 71,310,000. A graph provides the projected number of living children per 1000 aged 12 years or younger who would be born to mothers with HIV infection and the number who would be orphans between 1990 and 2000. 350,000 children 12 years and under are expected to be born to HIV-infected mothers in the year 2000.     

Gender and Intergenerational Co-residence in Egypt and Tunisia

This paper compares the levels and determinants of intergenerational co-residence among older women and men in Egypt and Tunisia. Women in both settings have higher odds than do men of living in child-headed households, largely because women more often are widowed and have fewer economic resources. In Tunisia, women have higher odds than do men of living in child-headed households partly because of their poorer health. In Egypt, the odds of living in parent- and child-headed intergenerational households for unmarried compared to married older adults are higher for women than men. Disparate needs and marital histories likely contribute to the different living arrangements of older women and men in these settings.     

中国老年人的居住方式与其婚姻状况的关系分析

基于追踪调查数据,运用随机效应Probit模型分析老年人的居住方式与其婚姻状况的关系及其在不同性别和不同年龄段上的差异。研究发现,丧偶对老年人的居住方式存在显著影响,老年人在丧偶后更可能与子女同住。然而,在控制配偶照顾因素后,丧偶对老年人居住方式的影响却大幅下降。从性别和年龄上来看,丧偶对女性老年人居住方式的影响大于男性老年人,对高龄老年人的影响大于低龄老年人。同时,研究还发现,在控制人口特征、社会经济以及健康状况变量之后,未观测到的个体异质性对老年人居住方式存在显著影响。